@article{MSH_1986__95__75_0,
     author = {Le Roux, B. and Rouanet, H.},
     title = {Contrastes essentiels et directions principales d'un nuage},
     journal = {Math\'ematiques et sciences humaines},
     pages = {75--81},
     publisher = {Ecole Pratique des hautes \'etudes, Centre de math\'ematique sociale et de statistique},
     volume = {95},
     year = {1986},
     zbl = {0624.62051},
     language = {fr},
     url = {http://www.numdam.org/item/MSH_1986__95__75_0/}
}